The Dark Earth: Dark Champion

MM Yaoi > Dark Fantasy, Elves - Dark Earth #1

Aidan Walsh, his adoptive mother and sister are forced to move back into Grandfather Patrick's home in Devil's Ridge due to money troubles. Aidan's secretive and lecherous adoptive grandfather ends up being the least of his worries on the Ridge.

Within the first hour of being there, Aidan is nearly lured to his death by something terrible in an old well, but is saved by the mysterious and alluring, Asher Vane. When his grandfather comes after Vane with a shotgun, calling him a "Demon Prince", Aidan realizes that life on the Ridge is less than normal. His grandfather's hatred for Vane does nothing to stop the growing attraction and love that Aidan begins to feel for his rescuer. But like everything else on the Ridge, Asher is not what he seems. And neither, as it turns out, is Aidan.